摘要
为了更好地提升双钢板混凝土组合剪力墙的抗震性能,将新型LYP160低屈服点波纹双钢板替代平钢板应用于组合剪力墙结构,并以混凝土强度(C30、C40、C50和C60)、中低剪跨比(2.0、1.5和1.0)为主要参数,设计了12组试件,其中普通钢材试件、低屈服点钢材试件各6组。利用有限元软件建立新型LYP160低屈服点波纹双钢板组合剪力墙结构模型,通过绘制滞回曲线和骨架曲线,对12组试件进行承载能力和延性、刚度退化、耗能能力等抗震性能分析。结果表明:1)随着混凝土强度的增大,普通钢材试件和低屈服点钢材试件承载能力提高,延性有一定降低,耗能能力基本无变化,并且在相同混凝土强度下,低屈服点钢材延性比普通钢材延性好;2)随着剪跨比的减小,普通钢材试件和低屈服点钢材试件承载能力提升,延性略有下降,并且在相同剪跨比下,低屈服点钢材比普通钢材的延性最大提升70.83%。研究证明了LYP160低屈服点钢材波纹双钢板混凝土组合剪力墙的承载能力、延性、刚度退化、耗能能力相较于普通试件均有显著提升,具有良好的抗震性能,并可为LYP160低屈服点钢材波纹双钢板混凝土组合剪力墙的应用提供理论参考。
In order to better improve the seismic performance of the double-steel concrete composite shear wall,a new LYP160 low-yield point corrugated double-steel plate was proposed to replace the flat steel plate in the composite shear wall structure,and 12 groups of specimens were designed with concrete strength(C30,C40,C50 and C60)and medium and low shear span ratios(2.0,1.5 and 1.0)as the main parameters,including 6 groups of ordinary steel specimens and 6 groups of low-yield steel specimens.The finite element software was used to establish a new LYP160 low-yield point corrugated double-steel plate composite shear wall structure model,and by drawing hysteretic curves and skeleton curves,the seismic performance of 12 groups of specimens,including their bearing capacity and ductility,stiffness degradation and energy dissipation capacity was analyzed.The results show that:1)With the increase of concrete strength,the bearing capacity of ordinary steel specimens and steel specimens with low-yield point increases,the ductility decreases to a certain extent,and the energy dissipation capacity basically does not change.Under the same concrete strength,the ductility of steel with low-yield point is better than that of ordinary steel.2)With the decrease of the shear-span ratio,the bearing capacity of ordinary steel specimens and low-yield point steel specimens increases,and the ductility decreases slightly.Under the same shear-span ratio,the ductility of steel with low-yield point is increased by 70.83%compared with that of ordinary steel.The study proves that the bearing capacity,ductility,stiffness degradation and energy dissipation capacity of LYP160 low-yield point steel corrugated double-steel plate concrete composite shear wall are significantly improved compared with ordinary specimens,and have good seismic performance,which can provide theoretical reference for the application of LYP160 low-yield point steel corrugated double-steel plate concrete composite shear wall.
作者
袁朝庆
李月
李国洋
张浩
计静
YUAN Zhaoqing;LI Yue;LI Guoyang;ZHANG Hao;JI Jing(School of Civil Engineering and Architecture,Northeast Petroleum University,Daqing,Heilongjiang 163318,China;Heilongjiang Provincial University Key Laboratory of Disaster Prevention and Mitigation and Protection Engineering,Daqing,Heilongjiang 163318,China)
出处
《河北工业科技》
2025年第2期137-145,共9页
Hebei Journal of Industrial Science and Technology
基金
黑龙江省自然科学基金联合引导项目(LH2020E018)。
关键词
复合结构
波纹钢板
组合剪力墙
LYP160低屈服点钢材
抗震性能
composite structure
corrugated steel plate
composite shear wall
LYP160 low-yield point steel
seismic performance
